Vehicle-spring



(No Model.) 7

C. L .-TH01VIAS.' VEHICLE SPRING No. 420,395. Patented Jan. 28,1890,

Z m. w 4 5 m w 4 MW Lilhogmpimr, warmly D a UNITED STATES PATENT OFFICE.

CHARLES L. THOMAS, OF BUFFALO, NEW YORK.

VEHICLE- SPRING.

SPECIFICATION forming part of Letters Patent 1%. 420,295, dated .Tanuary28, 1890.

Application filed October 12, 1889 Serial No. 326,789- (llo model.)

To aZZ whom it may concern:

Be it known that 1, CHARLES L. THOMAS, a citizen of the United States,and a resident of Buffalo, in the county of Erie and State of New York,have invented certain new and useful Improvements in Vehicle-Springs andI do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

Figurel of the drawings is a representation in perspective, and Fig. 2is a detail view. I

This invention has relation to vehiclesprings; and it consists in thenovel construction and combination of parts, as hereinafter described,and pointed out in the claim.

In the accompanying drawings, the letter A designates a half or semielliptic steel spring clipped upon the axle of a vehicle in the usualmanner, and having its ends swaged in round or cylindrical form, asshown at a, and threaded to engage nuts, as hereinafter set forth. 7

C O designate laterally-opposite spirallycoiled springs, which consisteach of one or more coils having an inward-extended arm and a lateralarm extended parallel to the side of the vehicle and provided with aneye I), through which the round end ofthe elliptic spring passes, beingsecured in position by a nut h, as shown. similar but of oppositecurvature, and are attached to the wagon-body or a transverse barthereof above the axle. They are constructed of round or cylindricalsteel, and consist of one or more horizontally-disposed coils having theinner end d extended transversely and inward, and secured to the bottomcleat or bar of the body by abolt e, passing through an eye at the end,and by a staple or clip 6 between said end and the body of the coil,

These springs are as shown. The other end or arm G of the coil extendsinan opposite direction obliquely downward in a vertical plane at rightangles to the arm cl, parallel to the side of the wagonbody and justbeyond the plane of said side, as shown. The ends of the armsG of thepair of springs are flattened to provide breadth of metal for the eyesor slots 1), which receive the rounded ends or eyes of the ellipticspring hereinbefore described. By this connection of theoppositely-coiled springs with the ends of the elliptic spring thedownward strain is distributed upon the three springs when the vehicleis loaded; but in the event of a sudden rebound in passing over roughroadways the coils will relieve the strain on the elliptic spring,because on account of the leverage of the outer arms they yield readilyto the motions of said elliptic springs and of the wagonbody, andtherefore extreme tension is not brought to bear on the lower spring.The swaged ends of the half-spring are shouldered at g to providebearings against which the inner faces of the ends of the arms G bear,respectively, the nuts 71 being provided to prevent the parts frombecoming disconnected.

What I claim as new, and desire to secure by Letters Patent, is v In avehicle-spring, the combination, with a semi-elliptic spring clipped tothe axle and provided with cylindrical and threaded ends, and nutsthereon, of the horizontal oppositelycoiled springs provided with theinward-extended arms secured to the vehicle-body, and having the lateralarms extending parallel to the sides of the vehicle, and provided witheyes or slots engaging the round ends of the semi-elliptic spring,substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

- CHARLES L. THOMAS. \Vitnesses:

F. P. SMITH, CHARLES PRICE.

